1. 1Feinberg Child Study Centre, Schneider Children's Medical Centre, Sackler School of Medicine Tel Aviv University, Tel Aviv, Israel
2. Department of Psychology, Bar-Ilan University, Ramat-Gan, Israel
3. National Centre for Suicide Research and Prevention of Mental Ill-Health (NASP), Karolinska Institute, Stockholm, Sweden
4. Department of Child and Adolescent Psychiatry, New York State Psychiatric Institute, Columbia University, New York, NY, USA
5. Department of Health Sciences, University of Molise, Campobasso, Italy
6. Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA